Heat-exchange device



March 10, 1931. i F. G. CORNELL, 'JVR 1,795,837

I HEAT 'EXCHANGE DEVICE original Filed April 9, 1929 Elll vl1@t .I n HIlll l VENTOR Patented Mar. 10, 1931 umreo @gpg-FICE" FRITZ G.VCOPNEILLZJJR, orY MOUNTAIN Lakes, geestig, .essieivoe rre JENSENCREAMERY MACHINERY oo., or BLoeMr-ELD, NEW JERSEY', A eoRPomyrIoNy orNEW YORK HEAT-EXCHAGE DEvIo ig'mal Yapine'atbn 'filed April e, ieee,seal ivo. :asegzeea Divided and this afppieatn mea Febuary f 2e, 193e.serial'Na429587'2.

4This invention relates to heatex'ehange devices and has for yanobject asimple,l inexpensive, coinpaet, eieient and vsauit'a'ry apparatussuitablevfor use', either -i-ii heat-ing or cooling n-iilk, erearn andother liquid products.

Ah apparatus erhbodyig the invention eoinprises al plurality o-fsubstantially paral- 1 lelv pipes Aserial-ly' eonheeted by mea-ns ofheaders `slidably niounted on the pipesy Yand having a fluid tightfoonneet'iou therewith and a Vcluster of tubes iii eaeh pipe. 4 one pipeare connected with the tubes lof anotl'ier pipe rby conduits whieh areheldY in position byy elarnps'supportedby the headers. This arrangementpermitsrelative-expansion 'and contractionof the tubes and enclosingpipes without sub'jeetirrg-the Yapparatus lto damaging strains-'orstresses.`V Milk or ether liquid products are o'a'used to` How throughthe tubes and eeol-ing or 'heating liquid is caused to low 'throughthepipesfaround the tubes in the pposi-te directie-n or iii the saure fdue to the large 'area rsubjectf'to the tur musea t@ trave :out and back.through tu@y `tubesin one pipe before it is transferred toa dir'eetienas the ini-lk. By the use f "aplurality'o small tubes-*fortlhe-frhilkithef effi'eieno'y of heat exchangehetyv-eeuthe -heaftii-igor cooling'uid-and thefnilk is verhigh elem vflow offmil'k.- Moreover5i-h' the apparatus above described, due to the `l-feat:feitChar-igeeheieney of the shialltubesfaridtjhe turbulent staan theraathefre is addead; @are arme-k pass'ingfhfoeglithe-tubeswithfhe regu-1t thief .theminers uniformly anja efeienuy cooled or'heate'd. 1

In one type of appfar'atu's-,vthetubes are YAdivided into two .or moregroups!which?r eonu-l muni'eat'e with each other through a e-liarb'erprovided at one end of the pipe which they are arranged. The groupsof'tub'es' in each pipe communicate with similar gro-ups in the adjacentpipes, one grou-p of tubes vor 'each- .pipe being Connected to' a grou?.of tubes in thepipe ahead of it andthe ot er' group-of tubes of saidpipe being connected' with vthe Vg'froup 'of'tubes behind it. Milkor'other produ'ets flowing through the tubes is jthus ing or eoolihfgll'ui'd is-cause'd to flo-w through the enclosing pipes around thetubes, Vthe nil'k" or the'r liquid products being introduced inte thetubes at one end `of the apparatus Iand the eoolingfor'heating fluidbeing,y

4'introduced intothe pipes eitherat rthe saine laway of section of suchapparatus.

Fig.Y s is a senape on the une 3 3 of Fig.

Fig. 4- is a perspective used Iin the 'apparatus.vA i

plurali-'ty 'of parallel pipes 10 4are suppo'rte'd by standards 11.-These pipes are seview f a suing.

bevingv boresfor receiving the corresponding ends of va pair olpipes4lOand -l'iavirrga passagewey' 13 leading frein one bore tothe other1The free ends of the top and bottom pipes are provided with inlet andvoutlet sleeves 12. vA clusterY or tubes 14 extends through 'eaehpipe 10,thefends-*of the tubes heir-ig inserted and ixedin apertures in plugs.-15 and 16 which close the bores in helsleeves 12 an'd headers l12.Around each plug',` there is previded a gland 17 which bears against agasket 18 and aring 18 thereby 'formi-ng a tight joint between the plugand header or sleeves ia which ais arma-geef.. Glands T19 surround thepipes 10 andare threaded into the bores of the headers 12 and sleeves.-12. These glands compress a pack-ing 20 thereby 'producing a ti' andsleeves andthe pipes. l

` -Eaeh lof the plugs 16 is slightly re'eessed and is provided with 'arecessed cover 21 attache'd theretdl The r'eeess in the Cover forms"c'hauiber ifvhiel'iy one set of tubes 14 coniinui'eate with "theA,other set of tubes within(` 'theisaihepipe Y At'their other endsg'thetubes ght'jint between the headers 14 communicate with passageways in afitting 22 which engages the plug 15. Each fitting has two passagewaysand half of the tubes 1li communicate with one passageway and the otherhalf with the remaining passageway. Conduits23 provide communicationbetween one passageway of one fitting 22 and a passageway oit' anotherfitting 22. The conduits 23 are held with their ends engagingthe ends ofthe passageways inthefittings 22 by a yoke 2li pivoted to a bar orstra-p 25 which is carried by the adjacent headers. Onevpassageway ofthe bottom iitting 22 acts as an outlet from the tubes, while onepassageway of the top fitting acts as an inlet to the tubes or viceversa. The headers and plugs constitute caps for the ends of the pipe.

Milk or other liquid product to be cooled or heated is introduced intothe tubes through the inlet and is first caused to pass out and backthrough the tubes in the to?) pipe. The milk passes out through onevhalf of the tubes and into the chamber formed bythe cap 21 from whenceit flows back through the remaining group of tubes and is thentransferred by means of the conduit 23 to a group of tubes inthe nextlower pipe and so on until the milk is eventually discharged from theoutlet. rlhe heating or coolingV fluid is introduced into the bottomsleeve 12 through an inlet 26 and is caused to flow through the bottompipe, then into the next upper pipe by passageway 13 and so on until itreaches the outlet 2 7 in the top sleeve 12 from which Y it isdischarged from the apparatus or the direction of circulation Vmay bereversed. The use of a large number'of' small tubes for the milkprovides a large heat exchange surface and causes the milk to flow at asufficiently high velocity to prevent scorching of the milk or otherharmful action on it. Also deadL cores of milk are prevented due to theetiiciency of the turbulent action and the milk is thoroughly mixed atveach Vend of a group of tubes before entering another group whichinsures uniform treatment. Y

Expansion or contraction of the tubes 14 does not produce any harmfulVstrains on the apparatus. This is Ydue to the fact that the headers areslidably mounted on the pipes 10. As the tubes 14 expand, the plugs 15and 16 tend to move to the left and right and Venert a pull on the yokes2 4. This pull, in-

stead of putting a strain on the apparatus merely is Veffective to slidethe headers 12 and sleeves 12 on the pipe 10. When the tubes contract,the plugs exert pressure through the rings 18 and the headersand tendto'return the same to normal position and maintain the yokes 24: inclamping relationship' to the conduits 28. Because of the full floatingrelationshipA of the headers to the pipes, there is no opportunity ofinjury to the apparatus because of contraction and expansion strains.The apparatus takes up but little iioor space VCorrespending pipe, co

parting trein the spirit of the inventionV as defined in the appendedclaims. Y

claim: V

1. A device of the character described comprising a plurality ofsubstantially parallel pipes, a plurality of groups of tubes in eachpipe, headers connecting in pairs the Vcorresponding ends ofadjacentpipes, each header having bores in which said ends are slidably sealed,plugs sealing said bores and having apertures within which are fixed theends of said tubes, fittings engaging said..85 plugs, each ittinghavingpassageways. communicating with the groups of tubes in the `duitsrconnecting each passageway/ot `one fitting with a passageway ofanotheriitting,passageways in said head- 9o 1 ers connecting the bores,and means support- Ied by said headers for clamping said conduits andfittings in position.l Y y 2. fi device of the character describedcomprising a plurality of pipes, a plurality of of tubes in each pipe,headers conin pairs corresponding ends of adj acent pipes, each headerhaving bores in which said endsfare sealed, plugs lslidably sealing saidbores and having apertures within which i are Xed theends of said tubes,means at one end of .each piperfor providing communication Vbetwee'nthegroups of ytubes therein, conduits having their ends engaging plugs ,inthe opposite -ends of said pipes and provid-' 105 .ing:communicationbetween groups of tubes of adjacent pipes, passageways insaid headers connecting the bores, and means supportved by said headersfor clamping said conduits in position.

V A3. A Vdevice Vof `the character described comprising a plurality ofserially connected substantially parallel pipes, a plurality of fgroupsof tubes in each pipe, means` at one end of each pipe for providingcommunica- 1.115 tion betweeny the groups of tubes therein, and means atthe opposite end of each pipe for providing communication between agroup of tubes in one pipe and a group vof tubes in another pipe. Y'.120

e. A device of the character. described comprising a pluralityof'substantially parallel pip-es, a plurality of groups of tubes in eachpipe, headers connecting in pairs the correspondingends of adjacentpipes, eachrl25 header having bores in which said ends are slidablysealed, plugs sealing said bores and having apertures within which arefixed the Vends of said tubes, fittings engaging Vsaid municating withthe groups of tubes in the corresponding pipe, passageways in saidheaders connecting the bores, and lconduits connecting each passagewayof one fitting with a passageway of another iitting.

5. A device of the character described comprising a plurality of pipes,groups of tubes in each pipe, caps slidably sealing the ends of saidpipes and having apertures withinV which are iiXed the ends of 'saidtubes, the

caps at one end of said pipeshaving chambers for providing communicationbetween the groups of tubes in each pipe, and conduits having their endsengaging the caps y at the other end of said pipes to provide cornendsengaging the caps at the other end of said pipes to providecommunicationbetween a group of tubes in one pipe and a group of tubesin an adjacent pipe, and means supported by said caps for clamping saidconduits in position.

In testimonyy whereof, I have signed my name to this specification, f

FRITZ Gr. CORNELL, J R.

